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2. In some implementations, the lens holder 1120 is supported by the infrared filter 1134 to protect lenses in the lens assembly 704 from being pushed when a user touches or presses the front cover plate 708. The doorbell camera 106 may include at least a sensor board 1108, a
main board 1110 and a secondary board 1112 that are stacked within the device
housing 702. In some implementations, the sensor board 1108 includes a connector 1108A that is coupled to another connector of the main board 1110 directly. Alternatively, a flexible cable is optionally connected to the connector 1108A for electrically coupling the main board 1110 to the sensor board 1108. In some implementations, two ends of a flexible printed circuit FPC 1126 are electrically coupled to a respective connector at the main board 1110 and the secondary board to couple them to each other. The sensor board 1108 optionally sits on a rear interior surface of the device housing 702. An image sensor array 1114 may be disposed on top of an end of the sensor board 1108, and the lens assembly 704 may be further disposed on top of the image sensor array 1114, such that light passing through the lens assembly 704 arrives at the image sensor array 1114 to form an image captured by the image sensor array 1114. In some implementations, the sensor board 1108 includes an image processor. The image processor of the sensor board 1108 is optionally located directly below the image sensor array 1114 to facilitate further processing of the image captured by the image sensor array 1114. In some implementations, the sensor board 1108 also includes a connector for communicatively coupling the sensor board 1108 to the image sensor array 1114.
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In addition, this model was part of a large recall by Kidde in March 2018 over a manufacturing error that rendered one of the dual
sensors inoperable. Free replacement alarms are available for defective units; you can find more information at the Kidde web site. If your home lacks a hardwired network of interconnected smoke detectors, and tackling the job of wiring a whole house smoke alarm system is too much for your DIY skills or contractor budget to allow, stand alone battery operated smoke detectors remain a
reasonable second choice. Tops among these is the First Alert SA320CN Est. $20, a dual sensor, battery powered smoke detector that earns positive feedback overall. It's been tested by Consumer Reports, and earns the top rating for detecting both smoldering fires and flaming ones, though not a recommendation presumably because it cannot be interconnected with other alarms.
Clear two way audio. Works with other August devices. Hindsight pre buffering. On demand video streaming. Motion detection. Easy to install.